| Erweiterung | Name |
|---|---|
| .RPMSG | Restricted Permission Message |
| .EML | E-Mail Message (RFC 822 / MIME) |
| .MSG | Outlook Message (Microsoft Outlook saved email) |
| .MBOX | Mbox Mailbox (email container) |
| .MSF | Mail Summary File (Mozilla Thunderbird / Mork index) |
| .PST | Outlook Personal Storage Table |
| .OFT | Microsoft Outlook Template |
| .MIME | MIME-Encoded Message File (RFC 822 / MIME) |
| .DBX | Outlook Express E-mail Folder File |
| .OLM | Outlook for Mac Data File |
| .MBX | E-mail Mailbox File |
| .FWD | IMail Server Forwarded Mail Message |
| .MBS | Opera Mail Mailbox File |
